Information and Communication Technology

4.1.3.6 Client-Server Networks

Client/server describes the relationship bet ween two computer programs in which one program, the client, makes a service request from another program, the server, which fulfils the request. A. The client-server model can be used on the Internet as well as local area networks (LANs) . In both these ca ses, computers may interact with each other and share resources between them. Another way of organising networks is to make one node (computer) to serve the storage needs (and sometimes processing needs as well) of all other nodes (computers) in the networ k. This kind of arrangement is called a client-Server network (CSN). The computer that stores data and programmes is called the server and the computer that uses the data and software of the server is called the client. Some of the most popular applications on the Internet follow the client-server model including email, FTP, database access and Web services.